Freak of Nature is a term used to describe something that is extraordinary or unusual. It can refer to a person, an animal, or an event. The two crossword solutions, MONSTROSITY (11 letters) and MUTANT (6 letters), both describe something that is out of the ordinary and could be considered a Freak of Nature. MONSTROSITY implies something that is monstrous or unnatural, while MUTANT suggests something that has been altered from its original form. Both words are often used to describe something that is strange or abnormal.